Finding the Fourth Proportional to 80,583.12, 111,204.09 and 44,772.48
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Solution
The fourth proportional to 80,583.12, 111,204.09 and 44,772.48 is: 61,785.68
Step by Step Solution
- Step 1: Write the proportion equation
80,583.12 : 111,204.09 = 44,772.48 : x - Step 2: Convert to fraction form
80,583.12/111,204.09 = 44,772.48/x - Step 3: Cross multiply
80,583.12x = 111,204.09 × 44,772.48 - Step 4: Simplify right side
80,583.12x = 4,978,882,895.44 - Step 5: Solve for x
x = 4,978,882,895.44/80,583.12 - Step 6: Final answer
x = 61,785.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.